This plugin hasnt been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WP Share To Unlock

Description

WP Share To Unlock will allow you to lock any part of content on your WP page/post, including videos & images, to engage your website visitors to LIKE your content on Facebook. This is going to help you to generate more viral traffic to your website.